import atexit

import tornado.web
from django.conf import settings
from tornado import ioloop
from zerver.tornado import autoreload

from zerver.lib.queue import get_queue_client
from zerver.tornado.handlers import AsyncDjangoHandler
from zerver.tornado.socket import get_sockjs_router

def setup_tornado_rabbitmq() -> None:  # nocoverage
    # When tornado is shut down, disconnect cleanly from rabbitmq
    if settings.USING_RABBITMQ:
        queue_client = get_queue_client()
        atexit.register(lambda: queue_client.close())
        autoreload.add_reload_hook(lambda: queue_client.close())

def create_tornado_application(port: int) -> tornado.web.Application:
    urls = (
        r"/notify_tornado",
        r"/json/events",
        r"/api/v1/events",
        r"/api/v1/events/internal",
    )

    # Application is an instance of Django's standard wsgi handler.
    return tornado.web.Application(([(url, AsyncDjangoHandler) for url in urls] +
                                    get_sockjs_router(port).urls),
                                   debug=settings.DEBUG,
                                   autoreload=False,
                                   # Disable Tornado's own request logging, since we have our own
                                   log_function=lambda x: None)